TheyFit measurement fitting: great idea

After Condomerie, and other companies like Vinico, TheyFit created a tool to help people choosing the correct condom size.

TheyFit - Measurement fitting

3 easy steps:

1. Measure your erect penis
2. Enter the obtained values and get your condom size thanks to the TheyFit circumference code
3. Fill in the code to order your fitting condoms

There is also a refinement. One can choose his own fitting style:

In order to know which erect penile girths correspond to each TheyFit girth code, you will find below a chart reporting, for each fitting style, and each TheyFit code:

• The condom size (nominal lay flat width - or half circumference), 
• The minimum and maximum advised erect penis circumference 
• The corresponding condom stretch

One can easily notice that the linear relationship between condom and erect penis size is broken. This is explained by two main facts:

1. the elastic modulus tends to decrease with the increase in quantity of latex (when the condom size increases, the condom stretches more easily).
2. TheyFit modifies its latex formula (recipe) depending on the condom circumference.

This has been brilliantly explained by Gerofi:

The actual pressure and force on the penis depends on the relative circumferences of the penis and condom, the thickness of the rubber, and its elastic modulus.

 

In the normal domain of use, the latex elastic modulus can be considered as constant, which in turn, gives a linear relationship between condom and penis girth: the force to apply is directly proportional to the increase in circumference.

What TheyFit does is input ammonia to the formula to decrease the force to apply (and thus increase the elasticity of the condom) whenever they feel it is necessary. Other molecules can be added to get different effects.

Therefore, CondomSizeAndFacts has only one advice to give: whenever a producer gives its own instructions for use, concerning the relationship between condom and penis size, follow them. Otherwise, you can use the data collected in this blog to pre-select your concom size. In fine, only trying it will allow a final decision.

Anyway, I spotted some data which look like some inconsistencies: the 64mm condom size is proposed to only 1% of the population, the 69mm one to only 0.02% (a company would not sell products representing 0.02% of its market, unless it reaches its economical lot size)... Either the erect penis girth data are erroneous or there is some important piece of information missing. TheyFit data would shade some light on it, but I am not sure they would be willing to share it.

To conclude, a great tool, a nice success, but a few glitches which deserve to be ironed up... Or better explained!

TheyFit company is certainly one of the best company in the world, thanks to their underlying concept (supply the largest choice of sizes), to their great will to communicate and to participate in the information of the population about the importance to have proper fitting condoms.

They definitely deserve the best possible success.

Condomerie perfect fit tool: sized to fit condoms

Many people have been waiting for such a tool for a (very) long time. Condomerie finally did it: they created a tool to help people determine their correct condom size based on their erect penis dimensions.

Condomerie perfect fit: sized to fit condoms

3 easy steps:

1. Measure your erect penis
2. Enter the obtained values and get your condom size thanks to the CAS index
3. Check the different advised condoms

You can enter your erect penis circumference and length either by using the slides or by typing it in. For the ones who are not used to the international system of measure, a conversion tool in inches is proposed:

Once done, you can read your result:

For the ones not used to the CAS index, a shortcut is proposed:

The condomerie shop proposes different brands corresponding to your calculated size:

The tool is very impressive. It gives very accurate results.

However, one could notice that Condomerie took a bit safer approach than what was proposed in this blog (The condom size wizard). Each CAS size is proposed for a stretch percentage between 15% and 21% while the condom size wizard takes a more comfortable approach (between 10 and 15%).

Anyway, congratulations to the Condomerie shop. May they carry on participating in education for many more years.

Correct condom fit confirmed by condom industry

On its web site, Kimono condoms company created a pretty nice condom information page. Among other subjects, the condom size issue is nicely treated. This is rare enough in the condom industry to be quoted:

Average Penis Size

Penis Length: Many studies report the average erect penis length is about 6 inches. Anywhere from 5 inches to 7 inches is a common erect penis length.
Penis Girth: Many studies report the average girth of an erect penis is about 4.5 inches. Anywhere from 4 inches to 5 inches is a common girth for an erect penis.

Condom Size & Penis Size
IMPORTANT: to prevent slipping, the condom girth should always be smaller than the penis girth (circumference)
Small condoms – recommended for a penis under 5 inches in length, or under 4 inches in girth (condom girth less than 3.9 inches)
Standard condoms – recommended for a penis between 5-7 inches in length, or 4-5 inches in girth (condom girth 4.0 - 4.39 inches)
Large condoms – recommended for a penis over 7 inches in length, or over 5 inches girth (condom girth 4.40+ inches)

On top of it, they provide an interesting condom size chart whose data where obtained from product purchased in the market place:

Condom Brand Name Condom Size Condom Length (inches) Girth/Circumference estimated (inches) Latex Thickness (mm @ 90 mm point from open end) Kimono MicroThin Standard 7.48 4.10 0.049 Kimono MicroThin Plus Aqua Lube Standard 7.48 4.10 0.049 Kimono MicroThin Large Large 7.68 4.68 (head width) 4.10 (body width) 0.055 Kimono MicroThin Ribbed + Sensi-Dots Standard 7.48 4.10 0.065 Kimono Thin Standard 7.48 4.10 0.055 Trojan Bare Skin Standard 7.26 4.26 0.046 Trojan Ecstasy Standard 8.19 4.38 0.095 Trojan Ultra Thin Standard 7.26 4.22 0.055 Trojan Stimulations Ultra Ribbed Standard 7.31 4.24 0.121 Trojan Magnum Thin Large 7.53 4.44 0.080 Lifestyles THYN Standard 7.30 4.12 0.059 Lifestyles Ultra Sensitive Standard 7.20 4.18 0.074 Lifestyles Ultra Thin Standard 7.38 4.22 0.061 Lifestyles KYNG Large 7.33 4.44 0.075 Durex Extra Sensitive Large 7.98 4.42 0.059 Durex Extra Sensitive Ribbed Standard 7.27 4.10 0.076 Durex Pleasuremax Large 7.76 4.44 0.114 Crown Skinless Standard 7.21 4.14 0.062
All details here: http://www.kimono-condoms.com/condom-size.html A few remarks though: - Concerning the large size condom, also called magnum condoms, Kimono condoms takes a safe 13% ratio between the erect penis circumference and the condom girth (2 times the condom size). This is consistent with the data reported in this blog. - The "legendary" trojan magnum condom is not so mythical after all (no pun intended). This is a large condom among others. Somebody with a 5in erect penis girth can wear a magnum condom (be careful, to prevent slipping, to choose a tight enough condom). - For the standard and small size condoms, always ensure that your erect penis circumference is quite bigger than the condom girth.

The average erect penis girth may be even smaller than previously thought

As demonstrated previously,

the average erect penis circumference of western men is 121.67mm +- 13.34mm (4.79in +- 0.53in).

It actually may be significantly lower.

The condom requirements were disclosed during an eight-month study conducted by the Institute of Condom Consultancy, based in Singen, southern Germany. The purpose of the survey was to educate teenagers about the importance of effective contraception.

10 477 men from 25 European Union member countries were therefore surveyed on their penis length and girth.

The European erect penis girth averaged around 117mm (4.61in)

This is slightly below the results from scientific studies. This is surprising as usually the self-reported surveys give significantly higher results. For example the French came out on top with a claimed average girth of 136.3mm. Jan Vinzenz Krause, the institute's director, refused to comment on how honest he thought the Frenchmen had been in reporting the data. Clearly some wishful thinking or even lies were involved in this result.I invite you to follow this very sensitive and funny link:
http://www.thesniper.us/?tag=condom-sizes

To conclude, depending on the country and its culture, people may be more or less honest in reporting their actual penis size and if the average ends up below the one from scientific studies, it could reflects that some bias inherent to these studies have been eliminated. One could even say that the true average may be even below 117mm...

World average

This is more tricky. But one could take into account the few scientific studies realised in Asia, which represents at least half the world population.

Here is a chart reporting the main studies in the world concerning the average erect penis circumference (girth):

NB: The different kinds of measurement method (self-report after training, pharmacologically induced erections...) are equivalent as demonstrated brillantly:

- by the Indian study: http://www.nature.com/ijir/journal/v19/n6/fig_tab/3901569t3.html#figure-title

- and by the German study: http://www.ncbi.nlm.nih.gov/pubmed/11182344

The world average erect penis circumference is anywhere between 114 and 118mm (4.49 and 4.65in).

No reliable data from Africa were found. But from the Kinsey data, it appears that the difference between Caucasian and African averages could be neglected.

References:

K Promodu, K V Shanmughadas, S Bhat and K R Nair. Penile length and circumference: an Indian study. International Journal of Impotence Research (2007) 19, 558–563

http://www.nature.com/ijir/journal/v19/n6/full/3901569a.html

Institut für Kondomberatung. Europäische Penisgrößenstudie.

http://www.kondomberatung.de/penisgroessenstudie.php

The Condom Size Wizard

Welcome to the Condom Size Wizard, a tool to determine the best fitting condom to your erect penis.

The condom size is the width when laid flat. Therefore the condom size corresponds to half the condom circumference. 

As discussed here, Determination of a correct measuring system, the choice of the correct condom size depends greatly on the girth, or circumference, of the erect penis.

Please provide your erect penis circumference (girth): 90mm 3,54in - percentile of the population <= 90mm: 0,88% 91mm 3,58in - percentile of the population <= 91mm: 1,07% 92mm 3,62in - percentile of the population <= 92mm: 1,31% 93mm 3,66in - percentile of the population <= 93mm: 1,58% 94mm 3,7in - percentile of the population <= 94mm: 1,9% 95mm 3,74in - percentile of the population <= 95mm: 2,28% 96mm 3,78in - percentile of the population <= 96mm: 2,72% 97mm 3,82in - percentile of the population <= 97mm: 3,22% 98mm 3,86in - percentile of the population <= 98mm: 3,8% 99mm 3,9in - percentile of the population <= 99mm: 4,46% 100mm 3,94in - percentile of the population <= 100mm: 5,21% 101mm 3,98in - percentile of the population <= 101mm: 6,06% 102mm 4,02in - percentile of the population <= 102mm: 7,02% 103mm 4,06in - percentile of the population <= 103mm: 8,08% 104mm 4,09in - percentile of the population <= 104mm: 9,27% 105mm 4,13in - percentile of the population <= 105mm: 10,57% 106mm 4,17in - percentile of the population <= 106mm: 12,01% 107mm 4,21in - percentile of the population <= 107mm: 13,57% 108mm 4,25in - percentile of the population <= 108mm: 15,28% 109mm 4,29in - percentile of the population <= 109mm: 17,11% 110mm 4,33in - percentile of the population <= 110mm: 19,09% 111mm 4,37in - percentile of the population <= 111mm: 21,19% 112mm 4,41in - percentile of the population <= 112mm: 23,43% 113mm 4,45in - percentile of the population <= 113mm: 25,79% 114mm 4,49in - percentile of the population <= 114mm: 28,27% 115mm 4,53in - percentile of the population <= 115mm: 30,86% 116mm 4,57in - percentile of the population <= 116mm: 33,54% 117mm 4,61in - percentile of the population <= 117mm: 36,32% 118mm 4,65in - percentile of the population <= 118mm: 39,17% 119mm 4,69in - percentile of the population <= 119mm: 42,07% 120mm 4,72in - percentile of the population <= 120mm: 45,02% 121mm 4,76in - percentile of the population <= 121mm: 48% 122mm 4,8in - percentile of the population <= 122mm: 50,99% 123mm 4,84in - percentile of the population <= 123mm: 53,98% 124mm 4,88in - percentile of the population <= 124mm: 56,94% 125mm 4,92in - percentile of the population <= 125mm: 59,86% 126mm 4,96in - percentile of the population <= 126mm: 62,73% 127mm 5in - percentile of the population <= 127mm: 65,53% 128mm 5,04in - percentile of the population <= 128mm: 68,25% 129mm 5,08in - percentile of the population <= 129mm: 70,87% 130mm 5,12in - percentile of the population <= 130mm: 73,39% 131mm 5,16in - percentile of the population <= 131mm: 75,79% 132mm 5,2in - percentile of the population <= 132mm: 78,07% 133mm 5,24in - percentile of the population <= 133mm: 80,22% 134mm 5,28in - percentile of the population <= 134mm: 82,24% 135mm 5,31in - percentile of the population <= 135mm: 84,12% 136mm 5,35in - percentile of the population <= 136mm: 85,87% 137mm 5,39in - percentile of the population <= 137mm: 87,48% 138mm 5,43in - percentile of the population <= 138mm: 88,96% 139mm 5,47in - percentile of the population <= 139mm: 90,31% 140mm 5,51in - percentile of the population <= 140mm: 91,53% 141mm 5,55in - percentile of the population <= 141mm: 92,64% 142mm 5,59in - percentile of the population <= 142mm: 93,63% 143mm 5,63in - percentile of the population <= 143mm: 94,51% 144mm 5,67in - percentile of the population <= 144mm: 95,3% 145mm 5,71in - percentile of the population <= 145mm: 95,99% 146mm 5,75in - percentile of the population <= 146mm: 96,59% 147mm 5,79in - percentile of the population <= 147mm: 97,12% 148mm 5,83in - percentile of the population <= 148mm: 97,58% 149mm 5,87in - percentile of the population <= 149mm: 97,98% 150mm 5,91in - percentile of the population <= 150mm: 98,32% 151mm 5,94in - percentile of the population <= 151mm: 98,61% 152mm 5,98in - percentile of the population <= 152mm: 98,85% 153mm 6,02in - percentile of the population <= 153mm: 99,06% 154mm 6,06in - percentile of the population <= 154mm: 99,23% 155mm 6,1in - percentile of the population <= 155mm: 99,38% 156mm 6,14in - percentile of the population <= 156mm: 99,5% 157mm 6,18in - percentile of the population <= 157mm: 99,6% 158mm 6,22in - percentile of the population <= 158mm: 99,68% 159mm 6,26in - percentile of the population <= 159mm: 99,74% 160mm 6,3in - percentile of the population <= 160mm: 99,8% 161mm 6,34in - percentile of the population <= 161mm: 99,84% 162mm 6,38in - percentile of the population <= 162mm: 99,88%
The diameter of the erection is therefore: mm or inches

Depending on its size, a condom will be more or less stretched with this erect penis circumference. Please find below a chart reporting the stretch percentage depending on the most common condom sizes:

condom size (mm)	45	47	49	52	53	54	57	60	64	69
Condom stretch	%	%	%	%	%	%	%	%	%	%

As one can understand, not all condom sizes will fit a given erect penis circumference. As a matter of fact, the condom stretch should be between 10% and 20%, a good compromise between comfort and safety.

The Condom Size Wizard (or how to find the right condom size)

Condom Best Fit and other possible fits

Please provide your erect penis circumference (girth) to find out the perfect condom fit. Then you can select the perfect condom fit to see on the last list the other possible condom fits.

[SELECT] 90mm 3,54in 91mm 3,58in 92mm 3,62in 93mm 3,66in 94mm 3,7in 95mm 3,74in 96mm 3,78in 97mm 3,82in 98mm 3,86in 99mm 3,9in 100mm 3,94in 101mm 3,98in 102mm 4,02in 103mm 4,06in 104mm 4,09in 105mm 4,13in 106mm 4,17in 107mm 4,21in 108mm 4,25in 109mm 4,29in 110mm 4,33in 111mm 4,37in 112mm 4,41in 113mm 4,45in 114mm 4,49in 115mm 4,53in 116mm 4,57in 117mm 4,61in 118mm 4,65in 119mm 4,69in 120mm 4,72in 121mm 4,76in 122mm 4,8in 123mm 4,84in 124mm 4,88in 125mm 4,92in 126mm 4,96in 127mm 5in 128mm 5,04in 129mm 5,08in 130mm 5,12in 131mm 5,16in 132mm 5,2in 133mm 5,24in 134mm 5,28in 135mm 5,31in 136mm 5,35in 137mm 5,39in 138mm 5,43in 139mm 5,47in 140mm 5,51in 141mm 5,55in 142mm 5,59in 143mm 5,63in 144mm 5,67in 145mm 5,71in 146mm 5,75in 147mm 5,79in 148mm 5,83in 149mm 5,87in 150mm 5,91in 151mm 5,94in 152mm 5,98in 153mm 6,02in 154mm 6,06in 155mm 6,1in 156mm 6,14in 157mm 6,18in 158mm 6,22in 159mm 6,26in 160mm 6,3in 161mm 6,34in 162mm 6,38in

Select your condom fit Condom size fit

NB: this tool is only a general guideline. In case a condom company provides specific instructions about the condom and erect penis size correspondence, please follow them.

Also try out this Condom Size Calculator to see what exact condoms you should buy.

The Condom Size Test

A very informative, serious and nice web site exists about sex advice in general and penis and condom size information in particular:

http://sexperienceuk.channel4.com/
"Sexperience from Channel 4 provides sex advice based on people's real experiences with questions and answers about better sex, virginity, pregnancy, STIs, contraception and more. The journalist uses a doctor's service as a scientific backing.

Not only does it try and succeed in having men and teenagers less worried about their penis size, but it also manages to explain clearly how to choose the correct condom size. This is done with the help of a nice and funny video:

















http://sexperienceuk.channel4.com/videos/7154

The conclusion is basically as follows:

• If your erect penis girth is smaller than 12 cm (4.72 in), get small sized condoms.
• If your erect penis girth is between 12 and 13 cm (4.72 and 5.12 in), get standard condoms.
• If your erect penis girth is greater than 13 cm (5.12 in), get large sized condoms.

A slightly different, yet accurate, point of view concerning the choice of the correct condom size is given here:

Choosing the Right Condom Size

And a helpful Condom Size to Penis Girth Chart is here in our interview with Condom Monologues.

How big is big - How small is small - What is normal - How do I compare?

The number of "penis size" articles on the internet is absolutely incredible. This blog tries and shows how to correctly find out the best fitting condom. But this time, I would like to spend some time on this subject to have men stop worrying about it.

As we saw previously (http://condomsizeandfacts.blogspot.com/2011/10/simple-truth-about-penis-circumference.html), the average erect penis dimensions are as follow:

• average erect penis circumference: 121.67mm +-13.34mm (4.79in +-0.53in)
• average erect penis length (remember to press the pubic bone with your ruler): 147.64mm +-19.78mm (5.81in +-0.78in). 

By comparing the results of 50 scientific studies conducted since 1942, which between them have measured 11 531 penises, a review published in the BJU International demonstrated the average erect penis length to be 14 to 16cm (5.5 to 6.3in) and circumference to be 12 to 13cm (4.7 to 5.1in).

The scientific community considers that any penis fitting within the mean + or - 2 standard deviations is perfectly normal. As an example, the condom sizes start at 45 or 47mm, which, at minimum, corresponds to the mean erect circumference minus 2 standard deviations (94.99mm).


From the above definition, more than 95% of the penises can be considered normal. And 2/3 of the penises are average (+ or - one standard deviation).


Please find below the corresponding charts to the erect penis girth (circumference) and length:

Graphically, this translates as follows:

Very small	Small	Average	Big	Very big
108mm X 95mm	128mm X 108mm	148mm X 122mm	167mm X 135mm	187mm X 148mm

Almost all penises are normal, and the great majority is average!

There is no excuse anymore to be worried! There are also different shaped condoms out there to suit those who want more "head room", a tighter grip on the shaft, or a flared shape, for example. Check out this Condom Size Calculator for help.

Now, instead of focusing so much on size, depending on the type of penis you have, you may feel the need to adapt your behaviour and strategy (provided that love, care, attention to your partner should already be what really matters).

For a bit of fun, I invite you to go to this page which happens to have a fairly good estimate of the averages:
Your trouser snake

References:
Wylie, K.; Eardley, I. (2007). "Penile size and the 'small penis syndrome'". BJU international 99 (6): 1449–1455
Penile size and the 'small penis syndrome'

Condom and penis size table applied to the CAS index - a tribute to Condomerie

The old saying is, women don't have penis envy, men do. And widespread pornography may have distorted the male self-image, as well as the poor marketing strategies used by condom makers, competing with the not nearly as adapted paradigm "SMALL, STANDARD, LARGE, XL".


Let's come back a bit to the bra analogy. Here, there is not such a concept. Bras are classified by objective numbers, and even if it is not as perfect as it could be, women choose bras, based on this measuring system.


Condomerie in Netherlands has created such a system, by first removing the hard measures (length, circumference) and replacing it with a circumference / length ranking: The CAS index (which stands for Condomerie Amsterdam Standard index). This should do the trick by removing a great deal of anxiety, especially among youngsters. Please go here for the full explanation: Condomerie CAS Index


Actually, the CAS index is even more accurate, as it takes into account:

- the condom circumference at the opening,
- the condom circumference at 7cm from the opening,
- the thickness of the condom wall,
- the condom length.

The CAS is then laid down this way: CAS 2 / 2 /.. / D, with letters, dots and numbers following the matching rule explained on the Condomerie web site. 


I propose to match the CAS, which ranks condoms based on objective criteria, with the erect penis circumference (to simplify, I will take into account only the opening circumference of the condom).


Here is a simplified matching table between condom CAS and penis size:

Find your erect penis circumference in the proposed ranges, and simply pick the CAS and/or condom sizes that fit you well.
For example, a man with an erect penis circumference of 5.2in could use any condom whose CAS index is 7. A man with an erect penis circumference of 127mm could use any condom whose CAS index is 6.

Of course, the determination of the erect penis length would be necessary to complete the CAS index:
If the erect penis is e.g. 155mm and given that the condom thickness is standard at 0.06mm, the CAS would become for our last example CAS: 6 / 6 / .. / D